摘要
利用异辛烷/Span80-Tween60/正丁醇微乳体系制备纳米铁粉,其大小约100nm,X射线衍射结果表明为а-Fe。对吸氧量测定表明,纳米铁粉的吸氧量是普通铁粉的1.5倍,脱氧速度明显提高。将制得的纳米脱氧剂用于开心果抗氧化研究,结果发现开心果的氧化过程减缓,而且效果优于普通铁粉脱氧剂。采用气相色谱-质谱联用法分析开心果油脂成分,其不饱和脂肪酸含量达88.38%。氧化后的开心果油脂中的一些不饱和脂肪酸含量略有下降。
Fe-nano powder was prepared from the microemulsion systems formed by iso-octane/Span80-Tween60/ nbutanol. The nanosized iron powder with average diameter of 100 nm and the product was a-Fe identified by XRD. The result of oxygen absorption determination showed that the deoxidizing amount and deoxidizing speed of nanoscale iron was much far than that of general iron powders. Nanosized deoxidizer was applied to inhibit oil oxidation in the Pistacia fruit. Compared with the control, the deoxidizer could inhibit the accelerating speed of peroxide values and acid values obviously. The fatty acids in the oil of Pistacia fruit were analyzed by gas chromatography-mass spectrometry （GC-MS）. In which the content of unsaturated fatty acids was 88.38%. It proved that some unsaturated fatty acids decreased slightly after oxidation.
出处
《中国食品学报》
EI
CAS
CSCD
北大核心
2009年第3期105-110,共6页
Journal of Chinese Institute Of Food Science and Technology
基金
浙江省自然科学基金项目(Y3080518)
关键词
脱氧剂
纳米颗粒
油脂氧化
Deoxidizer Nanoparticles Oil oxidation
